NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

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우리말 English

https://ysweb.yonsei.ac.kr/com/lgin/SsoCtr/initPageWork.do?univDivCd=facly server time check history

  • 2023-11-22 19:29:31 KST 0.225232
  • 2023-11-22 07:58:55 KST -0.062546
  • 2023-11-22 07:57:42 KST -0.050132
  • 2023-11-22 07:56:14 KST -0.017896
  • 2023-11-22 07:55:10 KST -0.003250
  • 2023-11-22 07:53:21 KST -0.054414
  • 2023-11-22 07:51:34 KST -0.046520
  • 2023-11-22 07:42:18 KST -0.003081
  • 2023-11-22 07:40:35 KST -0.053603
  • 2023-11-15 07:59:48 KST -0.075397
  • Average -0.0141607

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We fetch a server clock and let you see

Webservers transmit their time in seconds unit, so without special treatment, the maximum error would be as big as 1 second. NKO Atomic Clock calculates a server time more than ten times in 1 second and seize the moment when the second changes. Thus we can minimize the calculation error as small as 0.1 second. Moreover, delays between our server and a destination server are considered so the accuracy of time increases.

NKO supports the HTTPS protocol and subdomains

Some servers use different servers over protocols or subdomains. You can get a desired result by specifying more details.


# You need to tell us an exact server address. For example, some sites host differently by whether the address begin with WWW or not.

# Even if your computer clock isn't synchronized, NKO always will display correct time.

# If you click a numeric time error in the history view, the clock will use that measurement.

# The results can have quite much error if the destination server is under load balancing. Please refer to a variance in the server time history information.

# A particular service uses its own time clock, different with web servers' clock. in this case, server time guessing is not meaningful.